1. KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
2. Department of Biomicrosystem Technology, Korea University, Seoul 02841, Republic of Korea
3. Display Research Center, Korea Electronic Technology Institute (KETI), Gyeonggi-do 13509, Republic of Korea
4. Department of Integrative Energy Engineering (College of Engineering) and KU Photonics Center, Korea University, Seoul 02841, Republic of Korea
5. Center for Optoelectronic Materials and Devices, Post-Silicon Semiconductor Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea